Blue Sapphire - 2.93 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - No Treatment
05
days
17
hours
32
minutes
17
seconds
Starting bid
€ 1
Reserve price not met
Expert
Selected by Alberto Fidalgo
Qualified goldsmith, gemmologist and diamond dealer with over fifteen years experience.
Retail Estimate € 1,800 - € 2,200
No bids placed
Catawiki Buyer Protection
Your payment’s safe with us until you receive your object.View details
Trustpilot 4.4 | 122813 reviews
Rated Excellent on Trustpilot.
Natural sapphire, 1 stone, 2.93 carats, deep blue, oval, no heat treatment, sealed with ALGT report 84800145.
AI-assisted summary
Description from the seller
No Treatment - Natural Deep Blue Sapphire - 2.93 Carat - original ALGT Report and sealed
ALGT Report Number: 84800145
Antwerp, 17.11.2025
Species: Natural Corundum
Variety: Sapphire
Shape and Cut: Oval Mixed Cut
Weight: 2.93 Carat
Measurements: 10.06 x 7.07 x 4.23 mm
Deep Blue
Transparent
Comments: No indications of heating.
Delivery: Registered shipping with insurance and tracking number.
Perfectly suited as an investment, collector's item, or for use in a jewellery setting.
Sealed and original ALGT Report No. 84800145.
No Treatment - Natural Deep Blue Sapphire - 2.93 Carat - original ALGT Report and sealed
ALGT Report Number: 84800145
Antwerp, 17.11.2025
Species: Natural Corundum
Variety: Sapphire
Shape and Cut: Oval Mixed Cut
Weight: 2.93 Carat
Measurements: 10.06 x 7.07 x 4.23 mm
Deep Blue
Transparent
Comments: No indications of heating.
Delivery: Registered shipping with insurance and tracking number.
Perfectly suited as an investment, collector's item, or for use in a jewellery setting.
Sealed and original ALGT Report No. 84800145.
Details
Lab report number
84800145
Gemstone type
Sapphire
Total carat weight
2.93
Gemstone colour
Blue
Transparency
Transparent
Treatment
No heat treatment
Laboratory Report
Antwerp Laboratory for Gemstone Testing (ALGT)
Sealed by laboratory
Yes
Title additional information
No Treatment
Shape
Oval
Cutting style
Step cut
Sold by
Disclaimer
Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
Catawiki always aims to offer you the best possible buying experience. Our experts virtually review and select every object in line with our submission guidelines. While we strive to provide a detailed description and photographs of each jewellery object, discrepancies or inaccuracies may occur. It is your responsibility to review all of the information provided about an object, including the condition and description, before placing an order. Sellers are responsible for the information, pictures and description provided, including the quality, quantity and nature of the jewelry supplied. A small imperfection that cannot be seen in the photo but is included in the description is not a non-conformity. A Lab Report is not a guarantee, valuation or appraisal regarding the articles described therein. A Lab Report contains only the characteristics of an article described after it has been graded, tested, examined, and analyzed using the techniques and equipment used at the time of the examination from that specific Lab. The results of any other examination performed on the article may differ depending when, how, by whom and with which grading standard the article is examined. In addition, any changes and improvements in techniques and equipment that may have occurred which may enable the examiner to detect, among other things, the use of processes for altering the characteristics of an article which use was previously undetectable, does not automatically mean the object does not conform to its description.
